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Model DBGF Gravity Filter
Many industrial processes liquids become contaminated with various solids, debris or swarf causing detrimental effects to the process involved. The Filtertech model DBGF Deep Bed Gravity Filter provides effective deep bed gravity filtration to remove these contaminants. The model DBGF can be easily retrofitted for use in numerous applications as either a stand alone filter or as part of a complete engineered filtration system. The Model DBGF is available in various sizes and materials of construction to meet your application requirements.
Figure 1
Mode of Operation
Dirty liquid is fed into the filter through an inlet header, forming a pool above the open area of the filter chamber. The weight of the liquid becomes the driving force through the media, and the contaminants are intercepted to form a “cake”. This “cake” then becomes the filtering media itself. Clean liquid enters the chamber and can either gravity flow through the outlet at the bottom or can accumulate to support a flooded suction clean supply pump. As the layer of contaminants becomes tighter and thicker, the flow through the media is throttled, causing a rise in liquid level. This in turn energizes the conveyor drive system, introducing a short section of fresh media into the filter bed. The accumulated solids are conveyed to the discharge incline so that the liquid can drain back into the filter prior to final removal of the contaminants.
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